24" x 32" or 32" x 24" Cube Core Eggcrate Return Air Grille Color_Red Oak Wood + Product Details Size -

+ Product Details Size - 32"w X 28"h is the size for the duct opening measurement only

40" x 16" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 18" OR 18" x 20" duct opening (measured at the opening)

Actual Filter Size – 35 3/4"w x 25 3/4" x 1"

making installation a breeze

24" x 32" or 32" x 24" Cube Core Eggcrate Return Air Grille Color_Red Oak Wood + Product Details Size -+ Product Details Size 24" x 32" or 32" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 33. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing